Environmental Research & Control

Published by Environmental Management Center, Okayama University<Formerly known as>

岡山大学環境管理センター報 (4号-11号) 岡山大学環境管理施設報 (1号-3号)

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Permalink : http://escholarship.lib.okayama-u.ac.jp/20287

Kawai, Fusako

Abstract

We examined the biodegradability of polyethylene glycol by analyzing gel permeation chromatography patterns, which were obtained before and after cultivation of a microbial consortium E-1 in culture media containing polyethylene glycol as its sole carbon source. We solved an inverse problem of the initial value problem, which consists of an exogenous depolymerization model and the initial weight distribution, in order to determine an oxidation rate, for which the solution of the initial value problem also satisfies the final condition. Given the oxidation rate, we simulated the transition of the weight distribution solving the initial value problem. We interpret the result that reflects a physical significance of the molecular weight on the oxidation rate, and reach a conclusion concerning the role of the membrane transport in
exogenous depolymerization processes.

Keywords

biodegradation

polyethylene glycol

exogenous depolymerization

mathematical model

numerical simulation

Note

論文

ISSN

0917-1533

NCID

AN1024789X